Huawei Quidway S3900 Series Installation Manual page 10

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VI. Symbols
Eye-catching symbols are also used in the manual to highlight the points worthy of
special attention during the operation. They are defined as follows:
Caution, Warning, Danger: Means reader be extremely careful during the
operation.
Note, Comment, Tip, Knowhow, Thought: Means a complementary
description.
Environmental Protection
This product has been designed to comply with the requirements on environmental
protection. For the proper storage, use and disposal of this product, national laws and
regulations must be observed.
Action
Press the primary mouse button twice continuously and
quickly without moving the pointer.
Press and hold the primary mouse button and move the
pointer to a certain position.
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Description